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Commit 82ad9eed by lwc-tester
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still working on this

parent 40fb2d47
Inline Side-by-side
Showing with 18 additions and 204 deletions
test.py deleted 100755 → 0
#!/usr/bin/env python3
import re
import os
import sys
import struct
from subprocess import Popen, PIPE
def main(argv):
speed_test = True
if len(argv) < 3:
print("Usage: test.py LWC_AEAD_KAT.txt program [arguments]")
cmd = argv[2:]
for attempt in range(3):
print("beginning test %d of '%s' using test vectors '%s'" % (attempt, ' '.join(cmd), argv[1]))
try:
if speed_test:
measurements = begin_measurement()
try:
test(argv[1], cmd)
finally:
if speed_test:
end_measurement(measurements)
print("TEST SUCCESSFUL")
return 0
except Exception as ex:
print(str(ex))
print("TEST FAILED")
finally:
sys.stdout.flush()
sys.stderr.flush()
return 1
def test(test_file, cmd, ram_test=False):
test_file = open(test_file, 'r')
p = Popen(cmd, bufsize=0, stdin=PIPE, stdout=PIPE)
def write(data):
l = p.stdin.write(data)
if len(data) != l:
raise Exception("could not write %d bytes of data (put %d)" % (len(data), l))
def read(l):
if l == 0:
return b""
data = p.stdout.read(l)
if len(data) == 0:
print("Unexpected end of stream", file=sys.stderr)
#sys.exit(1)
if len(data) != l:
raise Exception("could not read %d bytes of data (got %d)" % (l, len(data)))
return data
def submit(action, data):
h = struct.pack("<BI", ord(action), len(data))
write(h)
write(data)
def obtain():
l = read(4)
(l, ) = struct.unpack("<I", l)
return read(l)
output = read(14)
if output != b"Hello, World!\n":
raise Exception("Unexpected output: %s" % output)
print("Ready")
m = b""
ad = b""
k = b""
npub = b""
i = 0
lineprog = re.compile(r"^\s*([A-Z]+)\s*=\s*(([0-9a-f])*)\s*$", re.IGNORECASE)
for line in test_file.readlines():
line = line.strip()
res = lineprog.match(line)
if line == "":
print()
print("Count = %d" % i)
print(" m = %s" % m.hex())
print(" ad = %s" % ad.hex())
print("npub = %s" % npub.hex())
print(" k = %s" % k.hex())
print(" c = %s" % c.hex())
submit('c', b"\0" * (len(m) + 32))
submit('s', b"")
submit('m', m)
submit('a', ad)
submit('k', k)
submit('p', npub)
write(b'e')
write(b'C')
output = obtain()
print(" c = %s" % output.hex())
if c != output:
raise Exception("output of encryption is different from expected ciphertext")
submit('m', b"\0" * len(c))
submit('s', b"")
submit('c', c)
submit('a', ad)
submit('k', k)
submit('p', npub)
write(b'd')
write(b'M')
output = obtain()
print(" m = %s" % output.hex())
if m != output:
raise Exception("output of encryption is different from expected ciphertext")
if ram_test:
# RAM test only tests the first test vector
write(b'u')
output = obtain()
print(" untouched memory = %d" % struct.unpack("<I", output))
break
elif res is not None:
if res[1].lower() == 'count':
i = int(res[2], 10)
elif res[1].lower() == 'key':
k = bytes.fromhex(res[2])
elif res[1].lower() == 'nonce':
npub = bytes.fromhex(res[2])
elif res[1].lower() == 'pt':
m = bytes.fromhex(res[2])
elif res[1].lower() == 'ad':
ad = bytes.fromhex(res[2])
elif res[1].lower() == 'ct':
c = bytes.fromhex(res[2])
else:
raise Exception("ERROR: unparsed line in test vectors file: '%s'" % res)
else:
raise Exception("ERROR: unparsed line in test vectors file: '%s'" % line)
def begin_measurement():
import saleae
import time
sal = saleae.Saleae()
# Channel 0 is reset
# Channel 1 is crypto_busy
sal.set_active_channels([0, 1], [])
sal.set_sample_rate(sal.get_all_sample_rates()[0])
sal.set_capture_seconds(6000)
sal.capture_start()
time.sleep(1)
if sal.is_processing_complete():
raise Exception("Capture didn't start successfully")
return sal
def end_measurement(sal):
import time
if sal.is_processing_complete():
raise Exception("Capture finished before expected")
time.sleep(1)
sal.capture_stop();
time.sleep(.1)
for attempt in range(3):
if not sal.is_processing_complete():
print("Waiting for capture to complete...")
time.sleep(1)
continue
outfile = "measurement_%s.csv" % time.strftime("%Y%m%d-%H%M%S")
outfile = os.path.join("measurements", outfile)
if os.path.isfile(outfile):
os.unlink(outfile)
sal.export_data2(os.path.abspath(outfile))
print("Measurements written to '%s'" % outfile)
mdbfile = os.path.join("measurements", "measurements.txt")
mdbfile = open(mdbfile, "a")
mdbfile.write("%s > %s\n" % (' '.join(sys.argv), outfile))
mdbfile.close()
return 0
raise Exception("Capture didn't complete successfully")
if __name__ == "__main__":
sys.exit(main(sys.argv))
test_common.py
......@@ -34,8 +34,10 @@ class DeviceUnderTestAeadUARTP(DeviceUnderTest):
self.ser = ser
def prepare(self):
time.sleep(0.1)
exp_hello = b"Hello, World!"
time.sleep(0.1)
if self.ser.in_waiting < 13:
time.sleep(2)
hello = self.ser.read(self.ser.in_waiting)
if hello[-13:] != exp_hello:
raise Exception(
......@@ -100,7 +102,7 @@ class UARTP:
fcs = (0xff - fcs) & 0xff
self.uart_write(fcs)
self.uart_write(UARTP.FIN)
eprint("sent frame '%s'" % buf.hex())
# eprint("sent frame '%s'" % buf.hex())
def recv(self):
tag_old = UARTP.FIN
......@@ -131,7 +133,7 @@ class UARTP:
if fcs == 0xff:
if tag == UARTP.FIN:
buf = bytes(buf)
eprint("rcvd frame '%s'" % buf.hex())
# eprint("rcvd frame '%s'" % buf.hex())
if len(buf) >= 1 and buf[0] == 0xde:
sys.stderr.buffer.write(buf[1:])
sys.stderr.flush()
......@@ -140,20 +142,20 @@ class UARTP:
def run_nist_aead_test(dut, kat):
dump_a = dut.dump_ram()
dump_a = dut.ram_dump()
for i, m, ad, k, npub, c in kat:
tool = SaleaeTimeMeasurements()
tool.begin_measurement()
try:
tool = SaleaeTimeMeasurements()
tool.begin_measurement()
try:
for i, m, ad, k, npub, c in kat:
run_nist_aead_test_line(dut, i, m, ad, k, npub, c)
finally:
tool.end_measurement()
if dump_a is not None and i == 0:
dump_b = dut.dump_ram()
longest = compare_dumps(dump_a, dump_b)
print(" longest chunk of untouched memory = %d" % longest)
if dump_a is not None and i == 0:
dump_b = dut.ram_dump()
longest = compare_dumps(dump_a, dump_b)
print(" longest chunk of untouched memory = %d" % longest)
finally:
tool.end_measurement()
def run_nist_aead_test_line(dut, i, m, ad, k, npub, c):
......@@ -174,7 +176,7 @@ def run_nist_aead_test_line(dut, i, m, ad, k, npub, c):
dut.send_var(ord('p'), npub)
dut.do_cmd(ord('e'))
output = dut.get_var(ord('C'))
output = dut.obtain_var(ord('C'))
print(" c = %s" % output.hex())
if c != output:
raise Exception("output of encryption is different from " +
......@@ -189,7 +191,7 @@ def run_nist_aead_test_line(dut, i, m, ad, k, npub, c):
dut.send_var(ord('p'), npub)
dut.do_cmd(ord('d'))
output = dut.get_var(ord('M'))
output = dut.obtain_var(ord('M'))
print(" m = %s" % output.hex())
if m != output:
raise Exception("output of encryption is different from " +
......
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